<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <title>Wifi LED Light</title>
    <style>
        * {
            padding: 0;
            margin: 0;
            vertical-align: top;
        }

        div {
            margin: 10px auto;
            width: 100px;
        }

        /*这里是根据station(电平状态)调整CSS样式*/
        span {
            display: inline-block;
            margin: 2px;
            background-color: blue;
            width: 400px;
            height: 400px;
            top: 50%;
            left: 50%;
            position: absolute;
            transform: translate(-50%, -50%);
            border-radius: 50%;
        }

        input {
            width: 300px;
            height: 300px;
            top: 50%;
            left: 50%;
            position: absolute;
            transform: translate(-50%, -50%);
            border-radius: 50%;
        }
    </style>
</head>
<body>
<form action="/LED" method="post">
    <div>
        <span></span>
        <input type="submit" value="LED">
    </div>
</form>
</body>
</html>